Ability to check if one URL is submitted already, but then submit another. E.g. you want to submit http://example.com/#part2 http://example.com/#part2 But

Ability to check if one URL is submitted already, but then submit another. E.g. you want to submit http://example.com/#part2 http://example.com/#part2 But first check if someone has submitted http://example.com/ http://example.com/ Right now you either have to submit your less-preferred URL, or browse around and use google to see if the less-preferred URL has already been submitted.